Lunchbox



FIG. 1 is a top, front, right side perspective view of a lunchbox according to the present design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a rear elevation view thereof;

FIG. 8 is a bottom, front, right side perspective view of the lunchbox of FIG. 1 shown in the open configuration;

FIG. 9 is a top plan view thereof;

FIG. 10 is a front elevation view thereof;

FIG. 11 is a right side elevation view thereof;

FIG. 12 is a left side elevation view thereof;

FIG. 13 is a bottom plan view thereof; and,

FIG. 14 is a rear elevation view thereof.

The broken line showings are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a lunchbox, as shown and described. 